#VU14377 Authentication bypass in Windows Server - CVE-2018-8340
Published: August 14, 2018 / Updated: August 14, 2018
Vulnerability identifier: #VU14377
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-8340
CWE-ID: CWE-592
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Windows Server
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to bypass certain authentication factors.
The vulnerability exists due to an error when processing multi-factor authentication requests within Active Directory Federation Services (AD FS). A remote attacker can bypass certain authentication factors during multi-factor authentication and gain unauthorized access to sensitive data and functionality.
Remediation
Install updates from vendor's website.